Home | Mini UAC Series | MiniUAC-1303
MiniUAC-1303 High-performance Forward-looking Sonar
High-Resolution Active-Passive Forward Looking Sonar
MiniUAC-1303 is a high-performance forward-looking sonar. By leveraging proprietary beam enhancement technology, it achieves high resolution while maintaining long detection range, compact size, and low power consumption, making it easy to integrate into UUVs, ROVs, and other unmanned underwater platforms for forward small-target detection and identification. A key differentiator of this product is that, in dual-frequency configurations, the high- and low-frequency channels can operate and be displayed simultaneously.

Overview
MiniUAC-1303 Imaging Sonar
Key Features:
- High-Resolution Forward-Looking Imaging
Advanced beam enhancement technology enables clear detection and identification of small forward targets. - True Simultaneous Dual-Frequency Operation
High- and low-frequency channels operate and display simultaneously, combining long-range awareness with close-range detail. - Long-Range Performance in a Compact, Low-Power Design
Optimized balance of detection range, size, and power consumption for unmanned underwater platforms. - Wide Field of View & Multi-Beam Architecture
Up to ~110° horizontal coverage with 512 beams ensures reliable forward situational awareness. - Vehicle-Ready, Multi-Function Sonar Platform
Supports active imaging, optional multi-beam collision avoidance, and optional passive bearing in a single compact unit, ideal for UUVs and ROVs.
Product Description
The MiniUAC-1303A High-Resolution Active & Passive Forward-Looking Sonar is a high-performance forward-looking sonar designed for demanding underwater perception tasks.
By employing proprietary beam enhancement technology, the sonar achieves high angular and range resolution while maintaining long detection range, compact form factor, and low power consumption. This makes the MiniUAC-1303A particularly well suited for integration into UUVs, ROVs, and other unmanned underwater platforms, enabling reliable detection and identification of small targets ahead of the vehicle.
The sonar has a width of 260 mm, making it compatible with medium and small platforms with a diameter of 324 mm or larger.
The MiniUAC-1303A supports single-frequency or dual-frequency high-resolution imaging as standard. According to customer requirements, multiple frequency bands from 200 kHz to 1.2 MHz and various configuration combinations can be selected to support functions such as collision avoidance, high-resolution imaging, and low-frequency passive bearing estimation.
These configurations must be specified at the time of ordering. Some functions can coexist simultaneously.
Specifications
Passive Bearing Estimation Function (Optional)
- Available for single-frequency, dual-frequency, or triple-frequency configurations; switchable via software
- Center Frequency Range: 1 kHz – 100 kHz, user-selectable or automatic scanning
- Detection Range & Bearing Resolution (example):
Using a 37.5 kHz beacon with a source level of 175 dB: Detection range: 2 km; Bearing resolution: 1°
- Outputs real-time water pressure
- Measurement Range: 0–3 MPa or 0–20 MPa
- Accuracy: ±(5% + 10 kPa)
Built-in Sensors (Design Specifications)
Applications
- UUV / AUV Forward Obstacle Detection & Navigation
Provides long-range forward awareness and high-resolution imaging for autonomous navigation, route planning, and safe operation in complex underwater environments.
- ROV Close-Range Inspection & Small-Target Identification
Enables precise detection and identification of small structures, debris, and man-made objects ahead of the vehicle, especially in low-visibility or turbid water.
- Collision Avoidance for Unmanned Underwater Platforms
Optional multi-beam obstacle avoidance function delivers real-time obstacle bearing and range information to support proactive collision avoidance.
- Dual-Frequency Imaging for Long-Range Search & Near-Field Recognition
Simultaneous high- and low-frequency operation allows wide-area forward search while preserving fine detail for close-range target recognition.
- Passive Acoustic Beacon Detection & Bearing Estimation
Optional passive bearing function supports detection and localization of acoustic beacons or sound sources for homing, rendezvous, and recovery operations.
AUV Communication & Navigation Kit
Compact Navigator & Underwater Acoustic Modem
Designed for Autonomous Underwater Vehicles (AUVs), the AUV Communication & Navigation Kit delivers high-precision navigation and reliable underwater communication in a unified solution.
- NAVS-3000 Compact Navigator — Provides INS-based positioning, DVL velocity measurements, and depth data for precise real-time navigation.
-
UAC-08160X-OEM Underwater Acoustic Modem — Ensures stable, long-range underwater communication across multiple frequency bands.